Here is a still from the video of the mystery coupe.
I've also snipped a couple of detail shots from the new 6th gen camouflaged mule pictures and the red mystery coupe.
Notice that there appears to be a flap on the camouflage to allow access to the fuel filler. The red mystery coupe has a cutout for the fuel filler on the same side. You can also see where the plastic is clinging to the actual bodywork. The rear fender and actual C-pillar line seem to match the red coupe as well.
Thoughts?